Block wall-paper trimmer.



J. W. MOORE.

I BLOCK WALL PAPER TRIMMER.

3 APPLmuIoN FILED mom-2a,;

PatentedMay 11 JOSEPH w. MOORE, OF DES MOINES, IOWA.

BLocK WALL-PAPER TRIMMER.

Application filed November-'23, 190 Serial No. 463,977.

Specification of Letters Patent.

Patented May 11, 1909.

To all whom it may concern:

Be it known that I, Josnrizr W. MOORE, a,

citizen of the United States, residing in Des trlmmer or cutter,designed to operate in conjunction with a straight edge, and adapted foruse in trimming wall paper, carpet, linoleum or other like articles.

My main object is to provide a trimmer, of this class, which willoperate on any straight edge without it being necessary to prepare thestraight edge to receive the device, and in this way any ordinary board,rule, or the like, may be utilized.

Another object is to provide such a device in a simple, strong, durableand practically inexpensive construction.

Myinvention consists of certain details of construction, hereinafter setforth, pointed out in my claims and illustrated in the accompanyingdrawings, and in which:

Figure I shows a side elevation view of my device; Fig. II shows alongitudinal sectional view of the same; Fig. III shows a transversesectional View of the same; and Figs. IV, V and VI are detail views ofparts of my device. Referring to the accompanying drawings, thereference numeral 10 is used to indicate the body of my trimmer, saidbody being dome shaped in conformation and hollowed on the inside asshown. One longitudinal side of the said dome shaped body portion isprovided with a depression 11, and in this depression the cutting wheel12 is designed to operate. The cutting wheel 12 is secured to a shaft13, which projects through an ob-. long and slightly curved orifice 14,to the opposite longitudinal side of the dome, where it is mounted in anoblong and slightly curved slot 15. The orifice 14 and the slot 15 arealike in conformation, and are designed to act as companions inreceiving the shaft, and the shaft is designed for upward and downwardmovement therein.

The numeral 16 indicates a plate secured to the longitudinal side of thebody portion,

- and designed to cover the outer surface of the cutting wheel, or aportion thereof as shown, this plate being designed to protect the handof the operator. Mounted in the sides of the dome shaped bodyportion'and near one end thereof, is a second shaft 16 and this shaft isparallel to the shaft 13.

The numeral 17, indicates a collar or ferrule, through which the shaft13 is threaded, and projecting. rearwardly from said ferrule is a lug18, which is secured for pivotal movement tothe shaft .16. Projectlngupwardly from the central portion of the said ferrule 17, are a pair ofcars 19, designed as a mounting for an upwardly extending vertical shaft20, the said shaft being loosely secured thereto. The u per portion ofsaid shaft 20, extends centra ly through the top of the dome shaped bodyportion, and is provided with a head 21.

The numeral 22 indicates a coil spring, mounted on the shaft 20 andsecured to the body portion in such a manner as to cause the normallposition of the shaft 20, to be at its upward imit of movement. Theferrule 17 is provided with ball-bearings, designed to engage the shaft13. The numeral 23 indicates a second coil spring, mounted between ,theside of the body portion opposite the cutting wheel and the end of theferrule 17, said spring engaging, and mounted upon, the shaft 13.

Numerals 24 and 25 indicate strengthening shafts secured near the baseofthe dome sha ed body portion. T he numeral 26, indicates a flange,projecting from the body ortion on the side opposite to the cutting weel, and this flange is designed to project downwardly and engage thesurface of the straight edge.

In practical operation any board, strip of steel, or the like, which hasany thickness what-so-ever, and is provided with a straight edge, may belaid upon the article sought to be cut, and my device placed thereon,the flange engaging the straight edge. The

operator then presses downward on the head 21, and thus causes the shaft13 to be lowered, moving downwardly in a radial movement from the shaft16 As the shaft 13 moves downwardly, it causes the cutting wheel 12 tobe forced downwardly, and whatever pressure is needed to cut the articledescribed may be applied. It is obvious that various sizes of cuttingwheels maybe mounted on the shaft 13, and operated in. connection Withmy device.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is:

1. A block trimmer comprising in combination, a body portion and aflange thereon; a horizontal shaft mounted for upward and downwardmovement in said body portion one end projecting therethrough; a cuttingwheel on said projecting end; a second horizontal shaft; a memberconnecting said horiand'secured to a shaft, horizontally mounted forupward and downward movement in the sides of said body portion; aferrule mounted. on said shaft and ball-bearings in said ferrule; asecond horizontal shaft and a member connecting said shaft to said.ferrule; a vertical shaft extending upwardly from said ferrule throughthe body portion and ahead on the upper end of said shaft; a coil springon said vertical shaft; a second coil spring between the first mentionedhorizontal shaft and the side of the body portion, all arranged andcombined, substantially as shown and described.

JOSEPH W. i\i()( )ltl l Vfitnesses:

ZELL G. Ron, B. L. QUINN.

